Improvement in locks for doors



Look for Doors.

No. 214.773. Patented Apr'i|29,1879.

Witnesses flttorney.

N. PETERS, PHOTOUTHOGRAPHER WASHINGTON D C UNITED STATES PATENT OFFICE.

JAooB HARTEL, JR, AND CHARLES WOLGAST, JR, or AMHERST, NEW YORK.

IMPROVEMENT IN LOCKS FOR DOORS.

Specification forming part of Letters Patent No. 214,773, dated April29, 1879; application filed March 17, 1879.

To all whom it may concern:

Be it known that we, JACOB HARTEL, Jr., and (humans WOLGAST, J r., bothof Amherst, in the county of Erie and State of New York, have inventedcertain new and useful Improvements on a Barn and Stable Door Lock; andwe do hereby declare that the following description of our saidinvention, taken in connection with the accompanying sheet of drawings,forms a full, clear, and exact specification, which will enable othersskilled in the art to which it appertains to make and use the same.

This invention has special reference to barn and stable door locks; andit consists in the peculiar construction and arrangement of parts,

as hereinafter first fully set forth and described,

and then pointed out in the claims.

In the drawings already referred to, Figure 1 is a partial section of abarn-door, showing our lock in position. Fig.2 is a face view of thelock, the face-plate being removed.

Like parts are designated by similar letters of reference in bothfigures.

A is the casing of an ordinary door-lock as now in use. It has the boltB and other inte-. rior parts the same as other locks, and does notdiffer therefrom except that the said bolt B has a catch-part, G, andthe casing A two lugs, D D, within which is pivoted a bellcrank lever,E, by the pin 0. This lever E has a notch, f, wherewith it engages astaple or other catch, 1?, fixed to the door-framing in any suitablemanner. The forward part of this lever is beveled, and has an aperture,1', for the reception of the pin 2', on a rod, G, provided with a knob,L, of any desired form or shape. This rod G has projections g, servingas a stop for aspiral spring, H, interposed between said projections andthe escutcheon J, fastened on the inner side of the door I. Thisescutcheon has an aperture fitting the rod G, and serves as a fulcrumfor said rod.

On the outside face of the door I is placed an escutcheon, K, having aslotted passage to allow the rod G to be depressed when actuated in thatdirection.

The arm E of the bell-crank E has a curved projection, f, and a nose, f,passing through the casing A, and constructed to engage the projection Oon the bolt B, as shown in Fig. 1.

In operation, the bolt B being upon the unlocking-point, the projectionC has disengaged the hook f, and allows the knob L to be de pressed,which, in turn, causes the notched lever E to disengage the staple F, sothat the door I can be opened, the spring H again returning the parts totheir normal position as soon as the knob L is liberated.

In closing the door the inclined part of said lever E slides up on thestaple F until it can drop into the notch f. In this position the 7 withthe catch 0, of the bell-crank lever E, provided with the notchf, andthe member E, with the catch f, the whole being constructed to operatesubstantially as and for the purpose specified.

2. The combination, with the door-lock A, the bolt B of which isprovided with a catch, 0, of the bell-crank lever E and the rodG, havingthe handle L, as and for the object stated.

3. In barn and other door locks, the combination, with .the main lock,of the bell-crank lever E, engaging the staple I and provided with theknob L, said bell-crank E being locked by the door-lock, substantiallyas and for the purpose specified.

In testimony that we claim the foregoing as our invention we have heretoset our hands and affixed our seals in the presence of two subscribingwitnesses.

' Attest:

MICHAEL J. STARK, J. A. MeINTosH.

